[3149] Minor changes after review (spaces, comments clean ups)

src/lib/dhcpsrv/alloc_engine.cc

@@ -177,7 +177,8 @@ AllocEngine::AllocEngine(AllocType engine_type, unsigned int attempts,
                          bool ipv6)
     :attempts_(attempts) {
 
-    Lease::Type basic_type = ipv6?Lease::TYPE_NA:Lease::TYPE_V4;
+    // Choose the basic (normal address) lease type
+    Lease::Type basic_type = ipv6 ? Lease::TYPE_NA : Lease::TYPE_V4;
 
     // Initalize normal address allocators
     switch (engine_type) {

src/lib/dhcpsrv/pool.h

@@ -82,7 +82,7 @@ protected:
     /// Pool class directly. Instances of Pool4 and Pool6 should be created
     /// instead.
     ///
-    /// @param type type of the pool
+    /// @param type type of lease that will be served from this pool
     /// @param first first address of a range
     /// @param last last address of a range
     Pool(Lease::Type type,
@@ -113,7 +113,7 @@ protected:
     /// @todo: This field is currently not used.
     std::string comments_;
 
-    /// @brief defines a pool type
+    /// @brief defines a lease type that will be served from this pool
     Lease::Type type_;
 };